Synthesis And Properties Research Of Aminosulfonic-Based Superplasticizer

The naphthalene is and the melamine resin belongs to the highly effective water reducing agent family's first generation of product, has reduces Shui Lvgao, early strong effect good and luck quantity low status characteristic, is suitable in the configuration excel in and the big poured concrete, stands for our country overwhelming majority concrete agitation uses. But this kind of highly effective water reducing agent oneself has the shortcoming which cannot be made up, control slump loss ability is bad, brings the serious difficulty for the concrete construction. Therefore, this research has carried on the massive investigation and study work, demonstrated according to the material, the multi-carboxylic acid are and the thionamic acid are the highly effective water medicinal preparation have to the cement granule highly the dispersivity, reduces Shui Lvgao, and has the function which the control slump loses; Also the cost is not high, the production craft is simple, will be domestic and foreign current most has the development future highly effective water reducing agent and becomes our country water reducing agent next development the direction.In the consult massive material foundation, through to the condensation response mechanism and each response condition analysis, the design synthesis craft route, and forecasts the product mix ,The laboratory synthesis thionamic acid is the water reducing agent. Synthesis thionamic acid is the most important stage which highly effective Shui Ji works is the determination mature synthesis craft and the parameter. Mainly has conducted the research from following four aspects:â‘ Reaction temperature (sulfonation and condensation),â‘¡Reaction time (sulfonation and condensation),â‘¢Raw material mole of ratio,â‘£Solution PH value. The small trial production moral character can after achieve the anticipated effect, selects 1000l the electric heating response cauldron, one time completes the synthesis craft in this Shan Funei. Also this big cauldron synthesis product needs the performance stably, the quality of material is even, its performance surpasses the test chamber slightly to try the product.The thionamic acid is the highly effective water reducing agent although has the naphthalene is and the melamine is the superiority which the water reducing agent is unable to compare, for example: To the cement granule polymolecularity, Gao Jianshui leads the function which and the control slump loses and so on, but its oneself also has certain flaw, namely mixes the initial period in the concrete easily to form certain quantity the weeping, enable the concrete the cohesive properties coherency to have certain depression, therefore, this research divided in the concrete practical application two steps has conducted the research. First, according to this water reducing agent Gao Jianshui and the high plasticizing characteristic, this research in the low hydrogel compared to, the high cementing material exempted inspires in the concrete and the excel in concrete has carried on the success application to it. Next, in the plain concrete application, this research passes through the massive experiments, after discovered this highly effective water reducing agent and the naphthalene are the water reducing agent compound, not only has overcome the amino and the naphthalene is the water reducing agent respective flaw, moreover enabled both to achieve the best use effect. This application development research, has provided the good economical technical basis for the actual project widespread application.